X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Funfold%2Flifts_lifts.ma;h=72948f04b618bac45ab397b9c1efe8f451259a7f;hb=ba575c0609015580c1419c17b350de19a158e8e3;hp=0ea0a2186c46daedd367b2ab8001179788410cc4;hpb=a8c166f1e1baeeae04553058bd179420ada8bbe7;p=helm.git

diff --git a/matita/matita/contribs/lambda_delta/basic_2/unfold/lifts_lifts.ma b/matita/matita/contribs/lambda_delta/basic_2/unfold/lifts_lifts.ma
index 0ea0a2186..72948f04b 100644
--- a/matita/matita/contribs/lambda_delta/basic_2/unfold/lifts_lifts.ma
+++ b/matita/matita/contribs/lambda_delta/basic_2/unfold/lifts_lifts.ma
@@ -20,6 +20,6 @@ include "basic_2/unfold/lifts_lift.ma".
 
 (* Basic_1: was: lift1_lift1 (left to right) *)
 theorem lifts_trans: ∀T1,T,des1. ⇧*[des1] T1 ≡ T → ∀T2:term. ∀des2. ⇧*[des2] T ≡ T2 →
-                     ⇧*[des1 @ des2] T1 ≡ T2.
+                     ⇧*[des1 @@ des2] T1 ≡ T2.
 #T1 #T #des1 #H elim H -T1 -T -des1 // /3 width=3/
 qed.